A straightforward guide to real investment ranges for North Metro Atlanta homeowners — based on actual projects completed by Peachtree Decks & Porches.
If you’re researching outdoor living projects in Atlanta, you’ve probably run into the same frustrating non-answers: “It depends,” “Call for a free estimate,” or vague price-per-square-foot figures that don’t tell you anything useful. We’re going to do better than that. Peachtree Decks & Porches has been building luxury outdoor living spaces in North Metro Atlanta for over 18 years, and we’ve completed well over 1,000 projects. The ranges below come directly from real project data — not industry averages, not estimates, and not numbers designed to get you to call.
The goal is simple: by the time you finish reading, you should have a realistic sense of what a project like yours costs, what drives costs up or down, and what to ask any contractor before you sign anything.
What Drives the Cost of a Deck or Outdoor Living Project?
Four factors have the greatest influence on what your project will cost:
- Size and structural complexity. A 300-square-foot platform deck on flat grade is structurally simple. A 600-square-foot elevated deck over a walkout basement with engineered LVL beams, multiple stair configurations, and a watertight underdeck system is not. Every foot of elevation, every beam span, and every stair adds cost.
- Material choices. Composite decking spans a meaningful range. Entry-level composites (like Trex Enhance Naturals or MoistureShield Elevate) start lower; premium capped composites (Trex Transcend Lineage, TimberTech Vintage PVC, or Trex Signature) run considerably higher. Railing adds a separate and significant line item — and cable railing can more than double the cost of a standard composite railing system.
- Permitting, drafting, and engineering. Every permitted project in Georgia requires a permit, and most require stamped structural drawings. These fees are fixed costs that appear on every project budget, regardless of size.
- Scope additions. A standalone deck is one thing. Add an underdeck ceiling finish, a covered porch, a fireplace, an outdoor kitchen, or a paver patio, and the investment grows in proportion to the complexity — but so does the livability and long-term value of the space.
Composite Deck Costs in the Atlanta Area
Deck Board Replacement (Re-Decking an Existing Structure)
If your existing deck frame is structurally sound and you’re replacing deteriorated boards and railing, a re-decking project is the most cost-effective way to refresh the space. For a 400–500 square foot deck, expect to invest in the range of $45,000–$75,000, depending on composite brand and railing selection. This assumes the existing framing passes inspection and no structural repairs are needed. It is common to discover ledger damage, joist rot, or footing issues during demolition, which can add cost.
New Composite Deck (Standard Size, Entry- to Mid-Range Materials)
For a new deck in the 300–500 square foot range using entry- to mid-tier composite decking (Trex Enhance, MoistureShield Elevate or Meridian, TimberTech Terrain) with a composite railing system (Fortress Fe26, MoistureShield Compass, or equivalent), permit, drafting, standard footings, and basic stair configuration, a realistic investment range is $65,000–$100,000. Larger footprints, steeper grades, or more complex stair designs will push toward the upper end of that range.
New Composite Deck (Premium Materials and Finishes)
For a 400–600 square foot deck with premium composite decking — Trex Transcend Lineage, TimberTech Legacy, or MoistureShield Vision Cooldeck — along with a premium railing system (Trex Signature, Deckorators Voyage, or Fortress cable), wrapped columns, picture-frame border detail, low-voltage lighting package, and a watertight underdeck system with pine beadboard or tongue-and-groove ceiling finish, expect to invest $100,000–$200,000. Projects completed by Peachtree Decks & Porches in this scope range have landed between $118,000 and $145,000 depending on material selections and electrical scope.
A Note on Cable and Glass Railing
Cable and vertical-cable railing systems are significantly more expensive than composite balusters. Material costs alone for a Fortress V-Cable or Deckorators cable railing system run $190–$265 per linear foot — compared to $75–$110 per linear foot for a standard composite system like Trex Signature or Fortress Fe26. If your deck has 100 linear feet of railing, that’s the difference between a $10,000 and a $26,000 railing line item.
Covered Porch Costs in the Atlanta Area
Covered Porch Added to an Existing or New Deck
A covered porch is structurally more complex than a deck — it involves roof framing, roofing material, wall construction, wrapped columns, and usually a finished ceiling. For a porch in the 300–400 square foot range with standard asphalt or standing seam roofing, wrapped columns, a beadboard or tongue-and-groove ceiling, and a basic electrical package (ceiling fans, lighting, outlets), the investment typically falls between $80,000 and $180,000 depending on ceiling choice, column count, and roofing specification.
Covered Porch + Deck Combination
When a covered porch and an adjacent composite deck are designed and built together — which is how most of our clients approach the project — the combined investment generally falls in the range of $180,000–$250,000 for a well-specified project. Projects with exceptional scope, premium finishes across both structures, and extensive electrical and detail work have exceeded $300,000.
Adding a Fireplace
A gas non-vented fireplace adds $12,000–$20,000 to a porch project, depending on the fireplace specification (linear modern vs. traditional box), stone selection, and whether a hearth is included. A wood-burning fireplace with chimney pipe and masonry runs similarly. Electric fireplaces are on the lower end of that range. Stone installation alone — for flat face or inset with corners or interior stone only vs exterior stone — accounts for a meaningful portion of that figure.
Adding an Outdoor Kitchen
A functional outdoor kitchen island — with a built-in grill, granite or quartz countertops, and weather-resistant cabinetry — typically adds $15,000–$50,000 to a project, depending on grill specification, island size, and whether a pellet grill, refrigeration, or bar area is included.
Full Outdoor Living Projects: Deck + Porch + Fireplace + Kitchen + Patio
When a homeowner is transforming their entire backyard — combining a covered porch, an adjacent composite deck, a gas fireplace, an outdoor kitchen, and a Belgard or stamped concrete patio — the investment reflects the scope of a significant architectural addition to the home. These projects typically fall in the $150-$275,000 range. Peachtree Decks & Porches has completed comprehensive outdoor living transformations in Alpharetta, Milton, Suwanee, and surrounding communities in this range. Projects in this category are designed and built to last decades and are frequently compared to room additions in terms of their effect on how a family uses their home.
What Does Permitting Cost?
Permitting is not optional for new decks or porches in Georgia, and any contractor who suggests skipping it should be disqualifying themselves. For most projects, the permitting-related costs include structural engineering ($450–$800), drafting ($450–$2,800 depending on complexity), permit administration ($400–$600), and the jurisdiction-assessed permit fee. These costs appear on every project budget and are non-negotiable. Peachtree Decks & Porches handles every aspect of permitting on your behalf, including plan preparation, engineering coordination, submissions, revisions, and follow-up.
Why Two Contractors Can Quote the Same Project Very Differently
This is one of the most important things to understand before you start collecting bids. Two contractors can price the same project $30,000–$80,000 apart — and both can be honest. The difference usually comes down to three things:
- Scope specificity. A detailed scope that itemizes every material, every fastener, every stair tread, and every electrical outlet is harder to produce, but it leaves almost no room for change-order surprises later. A vague scope is faster to produce, but the contractor is managing their risk by leaving room to charge you more when something turns out to be more expensive than they assumed.
- Material certifications. Premium decking products like Trex, TimberTech, MoistureShield, Deckorators, and Fortress require certified installers to honor their manufacturer warranties. If a contractor isn’t certified — even if they’ve installed those products for years — the warranty on those materials may be void. Peachtree Decks & Porches holds five active manufacturer certifications across every brand we install.
- Allowances vs. fixed pricing. An allowance is a placeholder — it says “we’re estimating the stone at $5,000, but the actual cost may differ.” Contractors who rely heavily on allowances are passing pricing risk back to you. Peachtree’s approach is the opposite: our process is designed to define every detail before the agreement is signed, so you know your number before any work begins.
Frequently Asked Questions
What is the price per square foot for a deck in Atlanta?
Price per square foot is a commonly cited but often misleading metric. A 500-square-foot deck with premium composites, Trex Signature railing, a watertight underdeck system, beadboard ceiling, wrapped columns, and underdeck electrical runs approximately $240/SF fully installed — because the railing, stairs, columns, ceiling, and electrical are priced separately from the deck boards. A simpler 500-square-foot deck with standard composite and basic railing might run $130–$160/SF. The per-square-foot figure is only useful if you know exactly what’s included in it.
How much does a Trex deck cost in Atlanta?
Trex offers multiple product lines at very different price points. Trex Enhance Naturals is the entry-level product; Trex Transcend and Transcend Lineage are mid-premium; Trex Signature is the premium capped composite. For the decking material alone (not including framing, railing, or installation), Trex Enhance runs approximately $12–$14 per square foot to the client, Trex Transcend runs $21–$28/SF, and Trex Signature runs $29–$44/SF. These are material-only figures — framing, installation, railing, stairs, and all other components are additional.
Does Peachtree Decks & Porches publish pricing?
We provide the ranges above because we believe homeowners deserve honest information before they engage with any contractor — including us. What we don’t publish is a specific price list, because no two projects are identical and published prices that don’t reflect your actual space, soil conditions, local jurisdiction, or material selections aren’t honest. What we do commit to is this: during your on-site consultation, we will discuss your investment range honestly — and before any agreement is signed, you will know your exact number, with no hidden fees, no vague allowances, and no surprises.
How long does a project like this take from first meeting to completion?
The design phase typically takes two to six weeks depending on complexity and how quickly decisions are made. Permitting adds one to six weeks depending on the jurisdiction. Construction timelines range from two to three weeks for a straightforward deck to several months for a comprehensive outdoor living project. During your consultation, we’ll give you a specific timeline based on your scope. Every project is managed through our platform, which gives you real-time access to your schedule, progress photos, financial summary, and the ability to communicate with our team from your phone.
Peachtree Decks & Porches is a luxury outdoor living contractor serving North Metro Atlanta, including Cherokee County, Forsyth County, Alpharetta, Milton, Roswell, Suwanee, Cumming, Woodstock, and surrounding communities. To schedule an on-site consultation, call 770.667.2650 or visit peachtreedecksandporches.com.
135 Village Ctr W | Suite 100 | Woodstock, GA 30188 | 770.667.2650 | peachtreedecksandporches.com